1.8521 Steel

1.8521 Steel

Steel name: 1.8521
Diagram No.: 1101
DIN designation: 15CrMoV5-9
Mat.No. (Wr.Nr.) designation: 1.8521
Chemical composition in weight %: 0.13-0.18% C, <0.40% Si, 0.80-1.10% Mn, <0.025% P, <0.030% S, 1.20-1.50% Cr, 0.80-1.10% Mo, 0.20-0.30% V
Steel group: Nitriding steel
Applications: Al-free nitriding steel grade for relatively low nitriding hardnesses and relatively great nitriding depths. Suitable for gear wheels, cylinders, drills, connecting rods, shafts, extruders, guides, straightening rolls, thread gauges.
Comment: The legend: Tempering diagram: Pre-treatment: 980 °C, 30 min/air. Hardening: 980 °C, 30 min/oil. Heat treatment cross-section: 60 mm dia.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 940 – 980^oC/oil/polymer, water
Tempering: See the diagram

Diagram Tempering Temperature - Mechanical Properties

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Disclaimer: The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes. There is no representation that the recipient of this literature will receive updated editions as the become available.